124261 has 4 divisors (see below), whose sum is σ = 124972. Its totient is φ = 123552.

The previous prime is 124249. The next prime is 124277. The reversal of 124261 is 162421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 162421 = 7 ⋅23203.

It can be written as a sum of positive squares in 2 ways, for example, as 30625 + 93636 = 175^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 124261 - 2⁷ = 124133 is a prime.

It is a super-2 number, since 2×124261² = 30881592242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115 + ... + 511.

It is an arithmetic number, because the mean of its divisors is an integer number (31243).

2¹²⁴²⁶¹ is an apocalyptic number.

It is an amenable number.

124261 is a deficient number, since it is larger than the sum of its proper divisors (711).

124261 is an equidigital number, since it uses as much as digits as its factorization.

124261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710.

The product of its digits is 96, while the sum is 16.

The square root of 124261 is about 352.5067375243. The cubic root of 124261 is about 49.9012718500.

Adding to 124261 its reverse (162421), we get a palindrome (286682).

The spelling of 124261 in words is "one hundred twenty-four thousand, two hundred sixty-one".